South Africa paceman Kagiso Rabada has been ruled out for up to three months by a back injury, the Proteas have announced.

The 22-year-old underwent scans after complaining of discomfort during the fourth Test against Australia and will now rest for a month before beginning rehabilitation work.

Proteas team manager Dr Mohammed Moosajee said: “Kagiso has been diagnosed with a lower back stress reaction which will rule him out of cricket action for up to three months.

“He will need a month’s break from all physical activity before commencing with a rehabilitation programme to get him ready for the series against Sri Lanka in July.”

Rabada’s injury means he will be unavailable to play for for the Delhi Daredevils in the Indian Premier League.